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100 check-ins occurring around 6b85b767d0.

2013-01-25
02:10
Enhancements to the query planner to exploit transitive relationships in the WHERE clause, and other minor changes to bring the sessions branch into alignment with the trunk. check-in: 82d3d1ae user: drh tags: sessions
2013-01-23
18:53
Improved parsing of the arguments to the ".backup" command in the command-line shell. check-in: f1127e87 user: drh tags: trunk
18:44
Fix a double-free() call that can occur when SQLITE_ENABLE_TREE_EXPLAIN is defined. check-in: 5bfb5967 user: drh tags: trunk
2013-01-20
00:18
Fix a typo in a comment in the test_regexp.c test file. check-in: 68346af7 user: drh tags: trunk
2013-01-18
03:35
The \xXX escape in the test_regexp.c must be followed by exactly two hex digits. check-in: 82957495 user: drh tags: trunk
2013-01-17
17:20
Enhance the query planner to exploit transitivity of join constraints. check-in: 38852f15 user: drh tags: trunk
17:05
Improved error messages on the RTREE virtual table. Make the "fs" virtual table used for testing available on windows. check-in: c0b90d75 user: drh tags: trunk
16:43
Add the ability to disable transitive constraints using the sqlite3_test_control(SQLITE_TESTCTRL_OPTIMIZATIONS) interface. Closed-Leaf check-in: 593d67c8 user: drh tags: transitive-constraints
16:18
Avoid unnecessary collating sequence and affinity restrictions on the use of transitivity. Add test cases to show that the restrictions are not needed. check-in: 56549f45 user: drh tags: transitive-constraints
15:05
Make more aggressive use of transitivity in optimizing queries. Add a test case. check-in: d9676284 user: drh tags: transitive-constraints
03:18
Enhance RTree virtual table creation error messages that involve the getNodeSize() function. Closed-Leaf check-in: 652233d6 user: mistachkin tags: rtreeErrMsg
03:18
Make the 'fs' virtual table module portable to Windows. Closed-Leaf check-in: dd473cae user: mistachkin tags: fsVfsWin
00:08
Improved comments explaining the operation of the findTerm() utility routine in where.c. Increase the maximum number of levels of transitivity from 4 to 11. check-in: fe152f8b user: drh tags: transitive-constraints
2013-01-16
20:33
Fix the activate_extensions pragma so that it is a no-op when the required argument is omitted. check-in: 6195ebd8 user: drh tags: trunk
17:08
Enhance the query planner to exploit transitivity of join constraints in a multi-way join. check-in: 13171eb5 user: drh tags: transitive-constraints
00:46
Improvements to query planning for joins: Avoid unnecessary calls to "optimal scan" checks in cases where table reordering is not possible. Make sure optimal scan checks are carried out for CROSS JOINs and LEFT JOINs. check-in: d5ebb787 user: drh tags: trunk
2013-01-15
18:49
Fix a missing word in a comment. Enhance the "wheretrace" debugging output to show the estimated cost of each table option while planning the join order. check-in: ac4e119a user: drh tags: trunk
16:15
Clarification to a comment in where.c. No code changes. check-in: 04507c17 user: drh tags: trunk
2013-01-11
09:58
Add another test for the fts4 content= option. check-in: 7e6007a0 user: dan tags: trunk
2013-01-09
15:44
Check in an extra test for the fts4 "content=" option. No code changes. check-in: 0d0e5ab8 user: dan tags: trunk
14:49
Merge latest trunk changes into the sessions branch, especially the ORDER BY bug fix of 3.7.15.2. check-in: 34af6fac user: drh tags: sessions
11:53
Version 3.7.15.2 check-in: c0e09560 user: drh tags: version-3.7.15.2, branch-3.7.15
11:44
Fix an over-aggressive optimization of ORDER BY on a three-way join where the second table is UNIQUE and the ORDER BY occurs on the third table. Ticket [c997b11c4d53a2ee]. check-in: 3d0609c9 user: drh tags: branch-3.7.15
11:31
Fix an over-aggressive optimization of ORDER BY on a three-way join where the second table is UNIQUE and the ORDER BY occurs on the third table. Ticket [c997b11c4d53a2]. check-in: 5774f217 user: drh tags: trunk
11:27
Fix the date on the new orderby3.test test case. check-in: 7249bfc2 user: drh tags: trunk
11:25
Add a test case that demonstrates ticket [c997b11c4d53a2ee9983]. check-in: 598f5f75 user: drh tags: trunk
2013-01-08
17:24
Merge updates from trunk. Closed-Leaf check-in: f29680c4 user: mistachkin tags: configReadOnly
12:48
Do not raise an error if an unknown SQL function is found in a CHECK constraint while parsing the schema of an existing database. check-in: cda79028 user: drh tags: trunk
2013-01-07
17:31
Merge updates from trunk. check-in: bf90f1fb user: mistachkin tags: configReadOnly
13:26
Do not raise an error if an unknown SQL function is found in a CHECK constraint while parsing the schema of an existing database. This version causes a run-time error when processing STAT3 tables. Closed-Leaf check-in: 0a1207c8 user: dan tags: mistake
2013-01-05
17:17
More bug fixes to the test_regexp.c module. Bring test_regexp.c into alignment with the regexp.c file in the Fossil sources. check-in: 7695b88f user: drh tags: trunk
2013-01-04
22:26
Remove superfluous text from a comment. check-in: e9ac5339 user: mistachkin tags: trunk
20:45
Do not use umask() since it change the umask for the entire process, not just the thread using SQLite. Make whatever permission changes are needed using fchmod() after the file is created, instead. check-in: 6c4c2b7d user: drh tags: trunk
19:22
Fix an out-of-order local variable declaration in test_regexp.c. check-in: 8285b15a user: drh tags: trunk
14:06
Fix the zInit[] optimization of test_regexp.c when the initial string contains 3-byte UTF8 characters. check-in: 357231ec user: drh tags: trunk
2013-01-03
22:22
Merge recent trunk changes into the sessions branch. check-in: 7e068e39 user: drh tags: sessions
19:34
Bring back test_regexp changes that were made when porting to Fossil. Also fix some bugs that were introduced by the Fossil port. check-in: 45c158b1 user: drh tags: trunk
18:07
Improvements to column name resolution in queries with parenthesized FROM clauses. Also includes a fix for ticket [beba9cae6345a3]. check-in: 99127a66 user: drh tags: trunk
17:34
Further corner-case fixes to the name resolution logic. Closed-Leaf check-in: 20730bad user: drh tags: name-resolution-fix
16:54
Remove an incorrect assert() statement (ticket [beba9cae6345a]). Fix other minor problems in the name resolution logic. check-in: afe96a11 user: drh tags: name-resolution-fix
00:45
Now supports result sets of the form "TABLE.*" with nested FROM clauses. check-in: 4cf5ed7e user: drh tags: name-resolution-fix
2013-01-02
14:57
When resolving result-set name collisions, make them x:1, x:2, x:3, etc. instead of x:1, x:1:1, x:1;1;1. check-in: ef01e304 user: drh tags: name-resolution-fix
12:29
Merge all the latest trunk changes into the name-resolution enhancement branch. check-in: a5f4d2b6 user: drh tags: name-resolution-fix
2013-01-01
14:01
Reduce the size of the Index object (by 8 bytes on x64). check-in: 5a2ac944 user: drh tags: trunk
13:55
Enhance the table_info pragma so that the pk column shows the order of the columns in a multi-column primary key. check-in: 3076a890 user: drh tags: trunk
2012-12-31
20:16
More test cases for the REGEXP operator. Fix minor bugs uncovered by these test cases. check-in: a611c750 user: drh tags: trunk
19:18
Add the test_regexp.c module containing a cross-platform implementation of the REGEXP operator. check-in: 46c8c01b user: drh tags: trunk
2012-12-21
16:15
Ensure the database size field in the db header of a backup database is set correctly. Fix for [0cfd98ee201]. check-in: ff6857b6 user: dan tags: trunk
2012-12-20
01:15
Add PRAGMA foreign_key_check. Name the child and parent tables as part of a "foreign key mismatch" error. check-in: e408dc90 user: drh tags: trunk
00:32
Remove an unreachable branch operation from the foreign_key_check pragma. Closed-Leaf check-in: b5a8f316 user: drh tags: foreign-key-check
2012-12-19
20:39
Version 3.7.15.1 check-in: 6b85b767 user: drh tags: release, version-3.7.15.1, branch-3.7.15
17:10
Backport to the 3.7.15 branch the fix to the segfault problem of ticket [a7b7803e8d1e869] which involved the use of "AS" named result columns as logical terms of the WHERE clause. Also, change the version number to 3.7.15.1. check-in: bae528f4 user: drh tags: branch-3.7.15
16:58
Fix the segfault problem of ticket [a7b7803e8d1e869] which involved the use of "AS" named result columns as logical terms of the WHERE clause. check-in: b3c9e8f8 user: drh tags: trunk
16:32
A couple more test cases. Closed-Leaf check-in: 0ae14217 user: drh tags: tkt-a7b7803e
16:25
Additional test cases involving the use of a result column specified by its "AS" name as a logical term of the WHERE clause. Ticket [a7b7803e8d1e8699cd]. check-in: d7cc364e user: drh tags: tkt-a7b7803e
15:53
Proposed fix for ticket [a7b7803e8d1e8699cd8a]. check-in: 3d0e00c7 user: drh tags: tkt-a7b7803e
13:41
Add commentary to the ExprList object to explain how zSpan is overloaded. Add test cases for the new name resolution functionality. check-in: 3e7d84db user: drh tags: name-resolution-fix
02:36
Better resolution of table and column names in joins where some of the terms of the FROM clause are parenthesized. check-in: 7344e791 user: drh tags: name-resolution-fix
2012-12-18
19:36
Optimize the degenerate case of a FROM clause table name enclosed all by itself inside parentheses. Generate code as if the parentheses did not exist, rather than the old behavior of manifesting the parenthesized table into a transient table. Also, tag every FROM-clause SELECT subquery that is generated by a parenthesized FROM-clause expression using the SF_NestedFrom flag. The new SF_NestedFrom flag is not yet used for anything. check-in: 7fecced4 user: drh tags: trunk
16:07
Resolve names in FROM-clause subqueries prior to resolving names in the result set expressions of a SELECT statement. check-in: 9b67c633 user: drh tags: trunk
13:12
Remove old commented-out code from parse.y. Fix some over-length source lines in parse.y. No logical changes. check-in: 7e30c021 user: drh tags: trunk
11:59
On atomic-write capable systems, if copying the contents of an in-memory journal to disk fails, close the (on disk) journal file before returning the error to the caller. This causes the subsequent rollback operation to use the in-memory journal. Fix for [df678d738adb]. check-in: 8183d8d7 user: dan tags: trunk
2012-12-17
22:32
Added test cases for PRAGMA foreign_key_check. Fixed a bug that appears when the column order of the child and parent differ. check-in: 25411f83 user: drh tags: foreign-key-check
20:57
Add to the foreign_key_check pragma an extra output column "parent" that contains the name of the parent table for the constraint that failed. check-in: 97f7f737 user: drh tags: foreign-key-check
20:40
Enhance the error message for "foreign key mismatch" to include the names of the child and parent tables. Begin adding test cases for PRAGMA foreign_key_check. Make sure PRAGMA foreign_key_check gets all necessary table locks. check-in: 0f996352 user: drh tags: foreign-key-check
18:43
"PRAGMA foreign_key_check" with no argument checks the foreign keys on all tables. check-in: 57d47423 user: drh tags: foreign-key-check
18:05
Fix an issue with child keys that are not INTEGER PRIMARY KEY referencing INTEGER PRIMARY KEY in the parent. check-in: 603b695b user: drh tags: foreign-key-check
16:46
Prototype for PRAGMA that checks all foreign key constraints on a table. check-in: 01c980e9 user: drh tags: foreign-key-check
2012-12-14
17:54
Optimize IN operators in the WHERE clause of queries using virtual tables. check-in: 3d65c703 user: drh tags: trunk
17:48
Remove an unreachable branch. Improvements to comments. Closed-Leaf check-in: d2fb7619 user: drh tags: vtab-IN-opt
15:54
Merge in all the trunk changes that have occurred since this branch was opened. check-in: 6d507e4d user: drh tags: vtab-IN-opt
15:36
Fix the virtual table IN optimizer so that it work even if the virtual table implementation leaves the sqlite3_index_info.aConstraintUsage[].omit flag clear for an equality constraint that it intends to use. check-in: d6e045f8 user: drh tags: vtab-IN-opt
2012-12-13
18:57
Generalize the min/max optimization so that if an appropriate index exists, the index it can be used by any aggregate query that contains only a single max() or min() and does not contain a GROUP BY clause. check-in: 52e75594 user: drh tags: trunk
18:51
Increase the version number to 3.7.16 in advance of adding new features for the next release. check-in: 8bcf5f51 user: drh tags: trunk
16:37
Attempt to further generalize the min/max optimization so that, if an appropriate index exists, it can be used by any aggregate query that contains only a single aggregate of the form max(colname) or min(colname) and does not contain a GROUP BY clause. Closed-Leaf check-in: 7280e14c user: dan tags: minmax-opt
2012-12-12
14:30
Allow the error message from "PRAGMA integrity_check" to be longer than 20,000 bytes. check-in: 120c82d5 user: drh tags: trunk
13:36
Version 3.7.15 check-in: cd0b37c5 user: dan tags: trunk, release, version-3.7.15
2012-12-11
19:40
Update requirements marks and test cases for multi-VALUE INSERT and to fix typos in requirements text. check-in: 81d9ee0f user: drh tags: trunk
19:10
Fix a typo in a comment that is used to generate documentation. No changes to code. check-in: e38adb60 user: drh tags: trunk
2012-12-10
22:19
When an arithmetic operation with two integer operands must give a floating-point answer due to overflow, make sure the answer is not rounded back to integer by affinity. check-in: bd7aeeb6 user: drh tags: trunk
10:22
Modify releasetest.tcl so that it runs the "checksymbols" test on a build without SQLITE_DEBUG defined. If SQLITE_DEBUG is defined, the sqlite3WhereTrace variable causes the test to fail. check-in: 75e545a9 user: dan tags: trunk
09:08
Remove a reference to JumpOnce from a comment in vdbe.c. No code changes. check-in: ee662c03 user: dan tags: trunk
2012-12-08
23:37
Pull the latest trunk changes into the sessions branch, and in particular the collating-sequence refactorization. check-in: 4f6d69ae user: drh tags: sessions
22:14
Factor some work out of the index loop of the bestBtreeIndex() routine for a small performance increase. check-in: 92c9ab56 user: drh tags: trunk
21:51
Refactor collating-sequence handling as a fix for ticket [71e333e7d2e642]. The Expr.pColl field is removed from the Expr object. The COLLATE operator now becomes a separate instance of Expr in the expression tree. The code generator looks up the correct collating function as needed, rather than referring to Expr.pColl. check-in: 8542e618 user: drh tags: trunk
21:36
Adjustments to the collating-sequence refactoring to facilitate full-coverage testing and to fix some minor issues found by TH3. Closed-Leaf check-in: cdbfa664 user: drh tags: ticket-71e333e7
14:16
Make sure WHERE clause constraints A=B and B=A work the same even with COLLATE clauses. check-in: b3f53668 user: drh tags: ticket-71e333e7
13:26
Fix the header comment on the OP_Compare operator. check-in: 2722f407 user: drh tags: ticket-71e333e7
06:46
Merge updates from trunk. check-in: e65db42c user: mistachkin tags: configReadOnly
04:10
Duplicating check constraint expressions prior to code generation is no longer required, and so it is removed. check-in: 1a9db8dc user: drh tags: ticket-71e333e7
03:34
Veryquick passes all tests now. check-in: 7b96115e user: drh tags: ticket-71e333e7
00:52
Recognize TK_COLLATE operators that have been transformed into TK_REGISTER. Skip both TK_COLLATE and TK_AS operators when looking for the top of an expression. check-in: f66c1db2 user: drh tags: ticket-71e333e7
2012-12-07
23:23
Improved error messages when column integers in an ORDER BY clause are out of range. check-in: bd960d93 user: drh tags: ticket-71e333e7
23:10
For an ORDER BY on a compound SELECT, take the collating sequence from the left-most term of the compound. check-in: 8e724b38 user: drh tags: ticket-71e333e7
22:54
Do not report missing collating functions while parsing the schema. Also remove a stray comment. check-in: e313edca user: drh tags: ticket-71e333e7
22:18
Fix a long-standing issue with the distinct-as-aggregate optimization that only expressed when the new collating-sequence logic is turned on. check-in: 0aaf52a3 user: drh tags: ticket-71e333e7
21:02
Fix the processing of ORDER BY clauses with COLLATE terms on compound queries. 52 veryquick test failures remain. check-in: 49654453 user: drh tags: ticket-71e333e7
20:31
Many more tests are passing. Only about 100 failures remain in veryquick. check-in: f9fa7581 user: drh tags: ticket-71e333e7
19:28
Ensure the VerifyCookie sub-routine has been run before the database is accessed in an obscure case. Fix for ticket [d6b36be38]. check-in: 2d5f37c9 user: dan tags: trunk
18:38
Some errors in veryquick resolved. Many more to go. check-in: 972443b4 user: drh tags: ticket-71e333e7